.mask{
  background:#000;opacity:0.5;position:fixed;top:0;right:0;bottom: 0;left:0;z-index:600
}
.content{
  max-height: 600rpx;
  overflow-y: auto;
}
.row{
  width: 100%;text-align: center;line-height: 100rpx;background: #fff;
  border-bottom: 1px solid #f0f0f0;
}
.text-gray{color: gray}
.title{color:#666;background-color:#fff;}
.margin-top{margin-top:20rpx}
.container{background:#f0f0f0;position:fixed;width:100vw;bottom:0;z-index:888;
  font-size:30rpx;}